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Windows 7: SB0460 Not Working on Dell T5400 With Windows 7 64

I have a Dell Precision T5400 workstation that was recently upgraded to Windows 7 64. Since the upgrade, I'm unable to use my audio card. I've downloaded and installed the latest drivers from Creative several times. No matter what I do, the device won't become available and I get a "Code 39" message in properties for the device in the device manager.

Here's a list of things I've tried:

I've uninstalled and swept out all creative drivers and re-installed. No luck.

I've done the same and removed, rebooted, shut down, re-installed the card and installed the drivers. No luck.

I've tried running the installers in different compatibility modes. No luck.

I've check the registry entries for upper and lower bound entries in case this issue was similar to the occasional missing CD/DVD problem that's fixed by this registry hack. No luck.

I've lowered available memory to 2 Gigs as greater than 4 Gigs has been reported as a problem for SB cards in the past. No luck.

Dell support had nothing.

Dell doesn't provide Windows 7 drivers for this card or for the onboard sound card, for that matter.

There's plenty of talk in the threads about "Daniel K" drivers, but all the links are dead ends.

I've read through the Sound Blaster sticky thread and tried everything I could and some extra things to boot.

When you installed Win 7, did you install the Intel motherboard chipset drivers? If not, that could be why you are getting the code 39 and it won't install. Here is the Dell downloads and chipset drivers for this model. These are for Vista 64 bit as Dell does not officially support Windows 7, but the Vista drivers work OK on Win7.

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